Add test code to see the performance

build.sbt

@@ -47,11 +47,13 @@ pomExtra := {
     </scm>
 }
 
+scalaVersion := "2.11.1"
+
 javacOptions in (Compile, compile) ++= Seq("-encoding", "UTF-8", "-Xlint:unchecked", "-Xlint:deprecation", "-source", "1.6", "-target", "1.6")
 
 testOptions += Tests.Argument(TestFrameworks.JUnit, "-q", "-v")
 
-//concurrentRestrictions in Global := Seq(Tags.limit(Tags.Test, 1))
+concurrentRestrictions in Global := Seq(Tags.limit(Tags.Test, 1))
 
 autoScalaLibrary := false
 
@@ -64,7 +66,9 @@ incOptions := incOptions.value.withNameHashing(true)
 libraryDependencies ++= Seq(
    "junit" % "junit" % "4.8.2" % "test",
    "org.codehaus.plexus" % "plexus-classworlds" % "2.4" % "test",
-   "org.xerial" % "xerial-core" % "1.0.21" % "test",
+   "org.xerial.java" % "xerial-core" % "2.1" % "test",
+   "org.xerial" % "xerial-core" % "3.2.3" % "test",
+   "org.scalatest" % "scalatest_2.11" % "2.2.0" % "test",
    "org.osgi" % "org.osgi.core" % "4.3.0" % "provided",
    "com.novocode" % "junit-interface" % "0.10" % "test"
 )

src/test/scala/org/xerial/snappy/SnappyPerformanceTest.scala

@@ -0,0 +1,48 @@
+package org.xerial.snappy
+
+import java.io.{ByteArrayOutputStream, ByteArrayInputStream}
+
+import xerial.core.log.LogLevel
+
+import scala.util.Random
+
+
+/**
+ *
+ */
+class SnappyPerformanceTest extends SnappySpec {
+
+  lazy val data = {
+    val a = new Array[Byte](32 * 1024 * 1024)
+
+    for (i <- (0 until a.length).par) {
+      a(i) = Math.sin(i * 0.01).toByte
+    }
+    a
+  }
+
+
+  "SnappyOutputStream" should {
+
+    "improve output performance" taggedAs("out") in {
+
+      val input = data
+
+      time("compression", repeat=100, logLevel = LogLevel.INFO) {
+        block("default") {
+          val out = new ByteArrayOutputStream()
+          val sout = new SnappyOutputStream(out)
+          sout.write(input)
+          out.close()
+        }
+
+      }
+
+      //info(f"compressed size: ${compressed.length}%,d, input: ${data.length}%,d")
+    }
+
+
+
+  }
+
+}

src/test/scala/org/xerial/snappy/SnappySpec.scala

@@ -0,0 +1,22 @@
+package org.xerial.snappy
+
+import org.scalatest._
+import xerial.core.log.Logger
+import xerial.core.util.Timer
+
+/**
+ *
+ */
+trait SnappySpec
+  extends WordSpec
+  with Matchers
+  with GivenWhenThen
+  with OptionValues
+  with BeforeAndAfter
+  with Timer
+  with Logger
+{
+
+  implicit def toTag(s:String) : Tag = Tag(s)
+
+}